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Wound healing

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https://www.readbyqxmd.com/read/28087451/in-depth-comparative-analysis-of-the-chicken-eggshell-membrane-proteome
#1
Tamer A E Ahmed, Henri-Pierre Suso, Maxwell T Hincke
: The avian eggshell membrane (ESM) is stabilized by extensive cross-linkages, making the identification of its protein constituents technically challenging. Herein, we applied various extraction/solubilization conditions followed by proteomic analysis to characterize the protein constituents of ESM derived from the unfertilized chicken eggs. The egg white and eggshell proteomes (including previous published work) were determined and compared to ESM to identify proteins that are relatively or highly specific to ESM...
January 10, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28087294/bioactive-metabolites-of-docosahexaenoic-acid
#2
REVIEW
Ondrej Kuda
Docosahexaenoic acid (DHA) is an essential fatty acid that is recognized as a beneficial dietary constituent and as a source of the anti-inflammatory specialized proresolving mediators (SPM): resolvins, protectins and maresins. Apart from SPMs, other metabolites of DHA also exert potent biological effects. This article summarizes current knowledge on the metabolic pathways involved in generation of DHA metabolites. Over 70 biologically active metabolites have been described, but are often discussed separately within specific research areas...
January 10, 2017: Biochimie
https://www.readbyqxmd.com/read/28087075/cellular-transcriptional-response-to-zirconia-based-implant-materials
#3
Brigitte Altmann, Kerstin Rabel, Ralf J Kohal, Susanne Proksch, Pascal Tomakidi, Erik Adolfsson, Falk Bernsmann, Paola Palmero, Tobias Fürderer, Thorsten Steinberg
OBJECTIVE: To adequately address clinically important issues such as osseointegration and soft tissue integration, we screened for the direct biological cell response by culturing human osteoblasts and gingival fibroblasts on novel zirconia-based dental implant biomaterials and subjecting them to transcriptional analysis. METHODS: Biomaterials used for osteoblasts involved micro-roughened surfaces made of a new type of ceria-stabilized zirconia composite with two different topographies, zirconium dioxide, and yttria-stabilized zirconia (control)...
January 10, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28086962/inhibitory-effects-of-serum-from-sepsis-patients-on-epithelial-cell-migration-in-vitro-a-case-control-study
#4
Henna Jaurila, Vesa Koivukangas, Marjo Koskela, Fiia Gäddnäs, Sirpa Salo, Johanna Korvala, Maija Risteli, Toni Karhu, Karl-Heinz Herzig, Tuula Salo, Tero I Ala-Kokko
BACKGROUND: Sepsis delays wound re-epithelialization. In this study we explored the effect of human sepsis sera as well as the effects of cytokines, growth factors and exosomes of sepsis sera treated normal fibroblasts (NF) on keratinocyte migration and proliferation in vitro. METHODS: Serum samples were taken on days 1, 4, and 9 from 44 patients diagnosed with severe sepsis, and from 14 matching healthy controls. We evaluated the effects of sepsis serum with or without TNF-α, EGF, EGF receptor inhibitor or exosomes of sepsis sera treated NF on human keratinocyte (HaCaT) proliferation (BrdU assay), viability (MTT assay), and migration (horizontal wound healing model)...
January 13, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28081464/tumor-angiogenesis-of-sclc-inhibited-by-decreased-expression-of-fmod-via-downregulating-angiogenic-factors-of-endothelial-cells
#5
Zhi Ao, Shilong Yu, Pin Qian, Wenhong Gao, Ruiling Guo, Xiaoxiao Dong, Jianping Xu, Ruijie Zhang, Chaowen Jiang, Fuyun Ji, Guisheng Qian
Fibromodulin (FMOD), an ECM small leucine-rich proteoglycan (SLRP), was reported to promote angiogenesis not only during wound healing, but also in optical and cutaneous angiogenesis-dependent diseases. However, whether it plays important roles in tumor angiogenesis remains unclear. To explore the role of FMOD in tumor angiogenesis of human small cell lung cancer (SCLC), initially the study analyzed the relationship of FMOD expression in cancer tissues of SCLC with clinical characteristics. The analysis revealed that the positive FMOD expression was significantly associated with extensive stage of SCLC and higher vascular density...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28081138/overexpression-of-kinesin-family-member-20a-correlates-with-disease-progression-and-poor-prognosis-in-human-nasopharyngeal-cancer-a-retrospective-analysis-of-105-patients
#6
Sai-Lan Liu, Huan-Xin Lin, Fang Qiu, Wei-Jing Zhang, Chun-Hao Niu, Wen Wen, Xiao-Qing Sun, Li-Ping Ye, Xian-Qiu Wu, Chu-Yong Lin, Li-Bing Song, Ling Guo
BACKGROUND: Numerous studies have shown Kinesin family member 20A (KIF20A) may play a critical role in the development and progression of cancer. However, the clinical value of KIF20A in nasopharyngeal carcinoma (NPC) is unknown. Here, we investigated the expression pattern of KIF20A in NPC and its correlation with clinicopathological features of patients. METHODS: Real-time PCR and Western blotting were used to quantify KIF20A expression in NPC cell lines and clinical specimens compared with normal controls...
2017: PloS One
https://www.readbyqxmd.com/read/28079980/induction-of-mesenchymal-stem-cell-differentiation-in-the-absence-of-soluble-inducer-for-cutaneous-wound-regeneration-by-a-chitin-nanofibers-based-hydrogel
#7
Kangquan Shou, Yao Huang, Baiwen Qi, Xiang Hu, Zhanjun Ma, Ang Lu, Chao Jian, Lina Zhang, Aixi Yu
Transplantation of bone marrow mesenchymal stem cells (BMSCs) has been considered as a promising strategy for wound healing. However, poor viability of engrafted BMSCs and limited capabilities of differentiation into the desired cell types in wounds often hinder their application. Few studies report the induction of BMSCs differentiation into the skin regeneration related cell types using natural biopolymer, e.g., chitin and its derivative. Here we utilized a chitin nanofibers(CNFs) hydrogel as a directive cue to induce BMSCs differentiation for enhancing cutaneous wound regeneration in the absence of cell-differentiating factors...
January 12, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28079551/current-techniques-for-burn-reconstruction-using-dehydrated-human-amnion-chorion-membrane-allografts-as-an-adjunctive-treatment-along-the-reconstructive-ladder
#8
Paul M Glat, Thomas Davenport
The reconstructive ladder is a term coined by reconstructive plastic surgeons to describe levels of increasingly complex management of wounds. The first rungs of the ladder is allowing the wound to heal by secondary intention, advancing up the ladder to direct tissue closure, with skin grafting and tissue transfer (flaps) comprising the higher rungs. Skin grafting and tissue transfer (flaps) at the middle and higher rungs of the ladder are often necessary for the treatment of complex burn injuries. Our purpose is to describe how dehydrated human amnion/chorion membrane allografts may be used as an adjunctive treatment...
February 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28079550/the-use-of-dehydrated-human-amnion-chorion-membranes-in-the-treatment-of-burns-and-complex-wounds-current-and-future-applications
#9
Mayer Tenenhaus
Historically, biologic materials found in nature have been used for a wide variety of medicinal purposes, although their widespread use may be limited due to challenges in obtaining and properly preparing the material for safe clinical use. Amniotic membrane has long been recognized to possess unique properties favorable for healing. Dehydrated human amnion/chorion membrane allografts are commercially available for use in multiple sizes and configurations applicable for a variety of clinical settings and presentations...
February 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28078446/detection-of-rage-expression-and-its-application-to-diabetic-wound-age-estimation
#10
Xin-Yi Ji, Yang Chen, Guang-Hua Ye, Miao-Wu Dong, Ke-Zhi Lin, Jun-Ge Han, Xiang-Ping Feng, Xing-Biao Li, Lin-Sheng Yu, Yan-Yan Fan
With the prevalence of diabetes, it is becoming important to analyze the diabetic wound age in forensic practice. The present study investigated the time-dependent expression of receptor for advanced glycation end products (RAGE) during diabetic wound healing in mice and its applicability to wound age determination by immunohistochemistry, double immunofluorescence, and Western blotting. After an incision was created in genetically diabetic db/db mice and control mice, mice were killed at posttraumatic intervals ranging from 6 h to 14 days, followed by the sampling of wound margin...
January 11, 2017: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/28078188/new-innovations-for-deep-partial-thickness-burn-treatment-with-acell-matristem-matrix
#11
Justine S Kim, Alexander J Kaminsky, J Blair Summitt, Wesley P Thayer
Objective: Burn injuries remain a large financial burden on the healthcare system. According to CDC statistics (2010), nonfatal and hospitalized burns in the U.S. cost $1.8 billion for an annual incidence of ∼486,000 cases. To date, no technique proves to be the ideal therapy of deep partial-thickness burns. In this study, we review a trial usage of ACell (ACell, Inc.) wound matrix on deep partial-thickness burns. Approach: Burn patients were admitted through the Vanderbilt Emergency Department. Three were consented to receive ACell therapy...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28078187/bioelectric-field-enhancement-the-influence-on-membrane-potential-and-cell-migration-in-vitro
#12
Marcy C Purnell, Terence J Skrinjar
Objective: The extracellular matrix consists of critical components that affect fibroblast polarization and migration. The existence of both intrinsic and extrinsic electrical signals that play essential roles in the development, physiology, regeneration, and pathology of cells was discovered over a century ago. In this study, we study how the Bioelectric Field Enhancement (BEFE) device and its generated electromagnetic field (EMF) by continuous direct current (DC) significantly affect the membrane potential and cell migration of fibroblasts in vitro...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28078186/soluble-receptor-for-advanced-glycation-end-products-improves-stromal-cell-derived-factor-1-activity-in-model-diabetic-environments
#13
Melissa Przyborowski Olekson, Renea A Faulknor, Henry C Hsia, Ann Marie Schmidt, François Berthiaume
Objective: In diabetes, hyperglycemia causes the accumulation of advanced glycation end products (AGEs) that trigger reactive oxygen species (ROS) generation through binding the receptor for AGEs (RAGE). Because exogenous growth factors have had little success in enhancing chronic wound healing, we investigated whether hyperglycemia-induced AGEs interfere with cellular responses to extracellular signals. We used stromal cell-derived factor-1 (SDF-1), an angiogenic chemokine also known to promote stem cell recruitment in skin wounds...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28078185/cxcl11-expression-by-keratinocytes-occurs-transiently-between-reaching-confluence-and-cellular-compaction
#14
Arthur C Huen, Archana Marathi, Peter K Nam, Alan Wells
Objective: To investigate whether differentiation or cellular confluence is responsible for CXCL11 expression patterns in re-epithelialization. Approach:In vitro model systems of re-epithelialization using the HaCaT keratinocyte cell line were utilized in monitoring expression of differentiation markers, including desmoplakin and various cytokeratins while evaluating for an association with chemokine CXCL11 expression. Results: CXCL11 expression was elevated in sparse culture with peak expression near the time of confluence...
December 1, 2016: Advances in Wound Care
https://www.readbyqxmd.com/read/28077846/relaxation-in-technique-leading-to-new-beginnings
#15
Endre Koritar
This paper explores how standard analytic technique may result in a repetition of past traumatic experiences in the transference and countertransference analytic situation. Relaxation and elasticity of technique can lead to re-integration of previously fragmented ego functions, and in remembering and re-experiencing of previously repressed symbolic representations of fragmenting past traumatic experiences, resulting in neocatharsis and working through, thus healing wounds and scars sustained in self development...
December 2016: American Journal of Psychoanalysis
https://www.readbyqxmd.com/read/28077304/drosophila-dorsal-closure-an-orchestra-of-forces-to-zip-shut-the-embryo
#16
REVIEW
Peran Hayes, Jérôme Solon
Dorsal closure, a late-embryogenesis process, consists in the sealing of an epidermal gap on the dorsal side of the Drosophila embryo. Because of its similarities with wound healing and neural tube closure in humans, it has been extensively studied in the last twenty years. The process requires the coordination of several force generating mechanisms, that together will zip shut the epidermis. Recent works have provided a precise description of the cellular behavior at the origin of these forces and proposed quantitative models of the process...
January 7, 2017: Mechanisms of Development
https://www.readbyqxmd.com/read/28077137/aberrant-methylation-of-dact1-and-dact2-are-associated-with-tumor-progression-and-poor-prognosis-in-esophageal-squamous-cell-carcinoma
#17
Yan-Li Guo, Bao-En Shan, Wei Guo, Zhi-Ming Dong, Zhen Zhou, Su-Peng Shen, Xin Guo, Jia Liang, Gang Kuang
BACKGROUND: The DACT (Dishevelled-associated antagonist of β-catenin) family of scaffold proteins may play important roles in tumorigenesis. However, the epigenetic changes of DACT1, 2, 3 and their effect on esophageal squamous cell carcinoma (ESCC) have not been investigated so far. The aim of this study was to investigate the promoter methylation and expression of DACT family, in order to elucidate more information on the role of DACT with regard to the progression and prognosis of ESCC...
January 11, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28077118/malat1-promoted-invasiveness-of-gastric-adenocarcinoma
#18
Na Keum Lee, Jung Hwa Lee, Cristina Ivan, Hui Ling, Xinna Zhang, Chan Hyuk Park, George A Calin, Sang Kil Lee
BACKGROUND: Gastric cancer is the second leading cause of cancer globally, and the mechanism of its pathogenesis is still largely unknown. Recently, non-coding RNAs have been recognized to promote metastasis in various cancers, including gastric cancer. METHODS: We found that metastasis associated lung adenocarcinoma transcript-1 (MALAT1) is upregulated in gastric cancer tissue compared to adjacent normal tissue, as determined by microarray and subsequent qRT-PCR, then investigated the impact of MALAT1 on apoptosis, cell proliferation, and the cell cycle to dissect the carcinogenesis of gastric cancer, and examined mechanisms of invasion and metastasis...
January 11, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28077051/facile-preparation-of-antibacterial-highly-elastic-silvered-polyurethane-nanofiber-fabrics-using-silver-carbamate-and-their-dermal-wound-healing-properties
#19
Suk-Min Hong, Jong-Wan Kim, Jonathan C Knowles, Myoung-Seon Gong
In this study, polycarbonate diol/isosorbide-based antibacterial polyurethane nanofiber fabrics containing Ag nanoparticles were prepared by electrospinning process. Bio-based highly elastic polyurethane was prepared from hexamethylene diisocyanate and isosorbide/polycarbonate diol (8/2) by a simple one-shot bulk polymerization. Ag nanoparticles were formed using simple thermal reduction of silver 2-ethylhexylcarbamate at 120℃. The structural and morphological properties of polyurethane/Ag nanofibers were characterized by X-ray diffraction and scanning electron microscopy...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28077050/a-novel-human-like-collagen-hemostatic-sponge-with-uniform-morphology-good-biodegradability-and-biocompatibility
#20
Xijuan Jiang, Ya Wang, Daidi Fan, Chenhui Zhu, Lin Liu, Zhiguang Duan
Biodegradable sponges, as a promising hemostatic biomaterial, has been clinically required over the past decades. Current hemostatic sponges are generally prepared by crosslinking and freeze-drying, but the quality control or biocompatibility is often unsatisfactory due to the freezing-caused morphological non-uniformity and the toxicity of raw materials or cross-linkers. The crosslinking often greatly retards the degradation of the sponges and thus affects the healing of the wound. In this work, we prepared a novel hemostatic sponge using human-like collagen and glutamine transaminase (non-toxic cross-linker) and optimized its morphology via "two-step" freezing instead of conventional "one-step" freezing...
January 1, 2017: Journal of Biomaterials Applications
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